One of the easiest ways to do ghosting on a card is to use Distress inks, an image, and water.
I then took a fine paintbrush and some water and lifted the green from the insides of all the mistletoe leaves and stems.
For added interest, I sprinkled Frantage chunky white embossing enamel over the panel and heat set it from underneath the cardstock.
I mounted it on fun foam for some dimension and added a white pearl pen to the mistletoe berries.
The CAS Mix Up challenge requires stamping, ghosting, and at least one other technique or element - my others are heat embossing (on the image and the sprinkled Frantage) and liquid pearls (the pearl pen). Be sure to keep your card clean and simple!